Levels-of-growing-stock cooperative study in Douglas-fir [electronic resource] : report no. 15, Hoskins, 1963-98 / David D. Marshall, Robert O. Curtis.
Imprint
Portland, Or. (333 S.W. First Ave., P.O.Box 3890, Portland 97208) : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, [2002]